Well, in a 'naruto king of darkness fanfiction', it could potentially show Naruto exploring a darker side of his power or the ninja world. Maybe he gets influenced by some dark force and has to struggle between his normal self and this new, darker identity. It could also include new characters that are related to the 'king of darkness' idea, and these characters might either help or hinder Naruto on his journey.
Well, it could be about Naruto having some sort of dark origin or being involved in dark events. Maybe he has a hidden power related to darkness that is explored in this fanfiction.
Well, it could be about Naruto delving into the darker aspects of his world. Maybe he's on a journey to understand the true nature of the evil forces, or it could involve his own internal struggle with the darkness within him.
I haven't read this specific fanfiction yet. But generally, in a Naruto fanfiction with a 'Shapeshifting Master of Darkness' concept, it could explore Naruto having new and dark powers. Maybe he can transform into powerful and shadowy forms to fight enemies. It might also involve a new, darker side of the Naruto universe.
Well, Naruto is obviously one of the main characters as it's about him being the heir of darkness. Sasuke could also be a major character as his relationship with Naruto is always a central aspect in Naruto - related stories. Sakura might also play an important role, perhaps being one of the first to notice the changes in Naruto due to his new status.
Even some of Naruto's former friends could become antagonists in this type of fanfiction. If they are influenced by false information or some external force, they could turn against Naruto, which would further fuel his descent into darkness.
One interesting 'Naruto Darkness Fanfiction' could be one where Naruto has to face a much darker version of the Akatsuki. They might have more sinister motives and powers that are truly terrifying. In this kind of story, Naruto has to really dig deep into his own darkness to find the strength to combat them.
Naruto would likely be one of the main characters since it's in the title. There might also be other characters from the Naruto series like Sasuke or Sakura, who could be involved in Naruto's journey related to the 'king of darkness' concept. Additionally, new characters might be introduced that are unique to this fanfiction, perhaps some dark entities or mentors who guide Naruto in this new aspect of his life.
I think Naruto is the key character, but it could also feature Kakashi. Kakashi has a lot of knowledge and experience, and he might be there to guide Naruto or try to stop him from going too far into the darkness. Also, Sakura could be in it, maybe trying to bring Naruto back to the light.
Obviously Naruto would be one of the main characters. There might also be Sasuke, as he often has a complex relationship with Naruto. And perhaps some of the Akatsuki members could play important roles as they are associated with darker elements in the Naruto world.